Method of determining the noise component in a video signal

Details Method of determining the noise component in a video signal Method of determining the noise component in a video signal

1994-06-01

1996-01-16

Groody, James J.

Television

Image signal processing circuitry specific to television

Noise or undesired signal reduction

348620, 348622, H04N 521

Patent

active

054852226

ABSTRACT:
A motion signal is formed by subtracting an undelayed and a delayed video signal and by subsequently forming the absolute value. An amplitude maximum of the motion signal is initially determined within a search window and subsequently a minimum corresponding to the noise peak value is determined from the maximum values of a plurality of search windows.

REFERENCES:
patent: 4204219 (1980-05-01), Uchida
patent: 4953032 (1990-08-01), Suzaki et al.
patent: 4984069 (1991-01-01), Yamada et al.

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